.cat-side-window-content {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100vh;
  box-sizing: border-box;
  padding: 20px 45px 20px 20px;
  background-color: var(--bg-menu-active);
}

.cat-side-window-content .btn-close-side-window {
  position: absolute;
  top: calc(50vh - (40px / 2));
  right: 0;
  border: none;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  width: 20px;
  height: 40px;
  border-radius: 10px 0 0 10px;
  background-color: #c62828;
  color: #f1f1f1;
}